Tom Kenny
SpongeBob SquarePants / Gary the Snail / French Narrator (voice) / Patchy The Pirate
Mr. Lawrence
Plankton / Larry the Lobster (voice)
Dee Bradley Baker
Bubble Bass / Mama Bass (voice), Bubble Bass / Kevin / Tough Customer #1 / Sick Guys / Spitoon Crowd (voice), Lifeguard / Pants / Loser #2 (voice), Ranger (voice), Bubble Bass / Quacken (voice), Soil / Glow Fish / Bus Driver (voice), Zeus the Guitar Lord (voice), Perch Perkins / Weightlifter / Crowd (voice), Le Spatula (voice), Spot (voice), Norton / Perch Perkins (voice), Captain (voice), Bubble Bass (voice), Guard #2 (Voice), Perch Perkins / Newsbot 2000 / Bubble Bass (voice), Squilliam Fancyson (voice), Florence (voice), Employee Steve / Boy Fish / Guard (voice), Farmer/Sailor/Cannonball Jenkins (voice) / Announcer (voice), Flats' Dad (voice), Dolphin / Student # 2 / Customer #40 (voice), Tandy (voice), Snug (voice), Robot (voice), Sea Bear / Sea Rhino (voice), Kevin / Call / Queen Jellyfish (voice), Perch Perkins (voice), Monty P. Moneybags (voice), Patrick's House (voice), Huntsman (voice), Tinkle / Perch Perkins (voice), Louie / Perch Perkins / Bubble Bass (voice), Bubble Bass / Kevin / Lonnie (voice), Talking Gary (voice), Sun, Old Man Jenkins (voice), Perch Perkins / Bubble Bass (voice)
Sirena Irwin
Margaret SquarePants (voice), Cashina (voice), Lady Upturn / Mrs. Sturgeon (voice), Flipperty Gibbet (voice), Squilvia (voice), Lady Upturn / Prudence (voice), Nixie (voice), Lady Upturn (voice), Real Estate Agent (voice), Magic Conch (voice), Lady Upturn (voice) / Nurse Helga (voice) / Mo (voice) / Teen Girls (voice), Karen 2 (voice), Minnie Mermaid, Lady Upturn / Tooth Fairy (voice), Crossing Guard (voice), Margaret SquarePants / Betsy Krabs (voice), Prisoner #1 (voice), Betsy Krabs (voice)
Thomas F. Wilson
TV Announcer #2 (voice), Villains / Customer / Weenie Goon (voice), Stranger (voice), Tattletale Strangler (voice), Customer #1 / Customer #2 (voice), Cop #2 / Johnny / Donna (voice), Cecil (voice), Mutton Chop (voice), Dog Walker, Herb Star (voice), Reg / Customer #1 / Tough Fish (voice), Tony Fast Sr. / Cop #2 (voice), Marty / Herb Star (voice), Bald Fish / Fish #3 / Clerk Fish / Fish #4 / Starfish (voice), Reg / Salty Guy #3 / Salty Gang / Salty Patrons (voice), Flats the Flounder (voice), Football Fish / Fish #2 (voice), Stinky (voice)
Ernest Borgnine
Mermaid Man / Mermaid Man Doll (voice), Himself, Mermaid Man (voice)
Tim Conway
Barnacle Boy (voice), Barnacle Boy / Barnacle Boy Doll (voice)
Carlos Alazraqui
Nobby (voice), Scooter (voice), Fish #1 (voice), Zip (voice), Castle Fish / Loser / Marshmallow Fish (voice), Harvey (voice) / Nobby (voice), Director (voice), Harvey / Buff Guys / Crab Clique / Country Clique (voice), Police Officer / Nerd #2 / Nerd #7 / Nerds (voice), Fireman (voice), Atomic Flounder (voice), Nick (voice)
Bob Joles
Man Ray (voice), Man-Ray / Melvin / Fish #105 (voice), Painty the Pirate (voice)
Paul Tibbitt
Betsy Krabs (voice), DoodleBob (voice), Moon, DoodleBob (archive sound) (voice), Potty the Parrot (voice) / Man Driving Car, Potty the Parrot (voice), Potty the Parrot (voice) / Gorilla
Stephen Hillenburg
Potty the Parrot (voice) / Miner in Treasure Chest, Hans, Potty the Parrot (voice)
John Gegenhuber
Jimmy Blobfish (voice) / Anchovies (voice), Walter Haddock (voice), Cooty (voice), Old Man Jenkins (voice)
Kate Higgins
Mrs. Sally Spitoon (voice), Little Roxie (voice) / Narlene (voice), Narlene (voice)
Kevin Michael Richardson
Sir Urchin (voice), Squidward's House (voice), King Neptune, Daisy Bazooka (voice)
Marion Ross
Grandma SquarePants (voice)
Dana Snyder
Customers (voice), Lil' GrandPat / Kids (voice), GrandPat (voice)
Gary Anthony Williams
Goofy Manager (voice) / Garbage Man (voice) / DJ 2 Sc00pz (voice) / Crowd Member (voice), Goofy Manager (voice), Dutch / Goofy Manager (voice)
Cree Summer
Squiggly / Woman / Kids (voice), Bunny / Granny Tentacles (voice), Lady (voice), Lunch Lady Lenore / Teens (voice)
Laraine Newman
Granny Plankton / Nurse (voice), Additional Voices (voice), Granny Plankton (voice)
Frank Welker
Mystery (voice), Gorilla (voice), Clamu / Baby Oyster (voice)
Johnny Knoxville
Randy Cheeks (voice), Johnny Krill (voice)
Maurice LaMarche
Marlin Branzino (voice), Fat Bus Driver (voice) / Incidental 27 (voice), Sock World Announcer (voice)
Henry Winkler
Jeffy Tentacles (voice), Sharkface, Sharkface (voice)
Grey DeLisle
Rowdy Cheeks / Rosie Cheeks (voice), Granny Cheeks (voice) / Ma Cheeks (voice) / Rowdy Cheeks (voice) / Rosie Cheeks (voice), Preda Troy (voice) / Big Roxie (voice) / Elwood (voice)
Vincent Waller
Old Coot, Cowboy, Frenchy
